alfano



G. ALFANO.

ELEVATOR 000R AND OPERATING MECHANISM THEREFOR.

APPLICATION FILEDJAAY 25. I917.

WITNESSES a QWA.

INVENTOR ATTORNEY Patented Nov. 11, 1919.

G. ALFANO.

ELEVATOR 000R AND OPERATING MECHANISM THEREFOR.

APPLICATION FILED MAY 25. 1917.

Patented Nov. 11, 1919,

3 SHEETSSHEET 2.

INVENTOR ,f aie a ae fllfana yllllllll I I II a M 2 MW 6 M ATTO R N EY G. ALFANO.

ELEVATOR DOOR AND OPERATING MECHANISM THEREFOR.

APPLICATION FILED MAY 25- I917.

Patented Nov. 11, 1919.

INVENTOR ATTORNEY 3 SHEETSSHEET 3.

az'useppe fllfano WITNESSES GIUSEPI-E .ALFANO, or NEW YORK, N. Y.

ELEVATOR-1300B, AND OPERATING MECHANISM THEREFOR.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application fi ed May 25, 1917. Se ia No- 171,058.

To all whom it may concern.

Be it known that I, Giusnrrn ALrANo, a subject of the King of Italy, residing at New York city, in the county of New York and State of New York, have invented new and useful Improvements in Elevator-Doors and Operating Mechanism Therefor, of

which the following is a specification.

A further object is to provide for con trolling a cage door or pair of doors and automatically collapsing a shaft door and turning the latter in an outward direction.

A still further object is to provide for automatically and simultaneously controlling the cage door or doors and the shaft doors, and for turning the doors last mentioned in an outward direction in the same operation, providing an unobstructed entrance to the elevator cage.

With the foregoing and other objects in view, the invention consists in the novel construction, combination, and arrangement of elements hereinafter described and claimed.

In the drawings:

Figure 1 is a view of the shaft doors in front elevation and showing also a similar elevation of the cage doors.

Fig. 2 is a transverse section showing the means for controlling the frame carrying the cage doors, the section being on line 2-2 of Fig. 1.

Fig. 3. is a view partly in horizontal section and showing in top plan a tripper for controlling the doors of the cage.

Fig. 4 is a front elevation showing the shaft doors at one side collapsed and thrown outwardly.

Fig. 5 shows the same structure looking.

from the right in Fig. 4.,

Fig. 6 is a detail partly in elevation and partly in vertical section showing in de tail the means for controlling the frames in which the collapsible doors are mounted, the section being on line 6-6 of Fig. 1.

Fig. 7 is a detail in elevation showing means whereby two shaft doors, one above the other, are simultaneously operated.

Fig. 8 shows the cage doors on one side of the doorway in collapsed position.

Fig. 9 is a detail in elevation showing the tripper controlling the cage doors, and certain of the adjacent structure.

Fig. 10 is a section on the line 1010 of Fig. 9.

Fig. 11 is a detail view of one of the channeled members cooperating with the tripper of Fig. 9.

The mechanism for mounting and con trolling the shaft doors will first be described in connection with the construction of these doors. 1

Mounted on opposite sides of the shaft and adjacent to the doorway forming an entrance to the cage are a plurality of stationary vertical shafts designated 10 and 11, and pivotally or hingedly mounted on each of'these shafts are frames 12 and 14 in which the shaft doors are supported. Each frame carries a plurality of doors l5 and 16, the doors of oppositely located frames cooperating with each other to close the shaft opening along a central vertical line. Each shaft door comprises a plurality of members 17, 18 and 19, which are located in a horizontal position when the doors are in their closed position,that is in the position for protecting the shaft opening. Bars 17, 18 and 19 have pivotal connection with bars 20, 21 and 22 extending at an angle with the bars first mentioned, and the horizontally extending bars may be ofiset at their outer ends at a point adjacent to the pivotal mounting.

The lower bars of the upper doors are each provided with toothed members or pinions 23 rigidly mounted with reference to said bars and adapted to mesh with pinions 24: carried by the upper bars of the lower doors. The pivotal mounting of these pinions is shown at 25 and 26 and the pivotal mounting of the other bars of said doors is designated 27 The pivot members pass through the side bars 29 and 30 of each frame 12 and 14:, and said frames are pivotally or hingedly connected with vertical shafts 10 and 11 by means of apertured bracket members 31 and 32.

The pivot member 26 is provided on one ported on a vertical bar 39 secured to the spring 44.

Meshing With gear wheel 41 is a gear wheel 45 mounted on a short shaft 46 and adapted to have rotary movement imparted thereto by means of a tripper 47 cotiperating with a channel member 48 which is movable with the cage, and is provided with an inwardly flared portion 49, the flared portions of oppositely located members 48 converging with reference to each other. A stationary vertical guiding member or bar 50 is mounted in the shaft at each side and cooperates with channel member 48. The upper portions of oppositely located channels 48 may be connected by means of transverse bar 52, carried by the cage and offset at the points 53, and the lower ends of channels 48 are similarly connected by means of a bar 54 having its end portions offset at 55.

.The transverse bars mentioned are secured to the cage at points above and below the doorway. 1

Upon the movement of the cage to a proper position, the channels 48, or the end portions'thereof, engage the trippers 47 and rotate beveled gear wheels and 41, transmitting rotary movement to theframe or frames carrying the collapsible doors. This rotary movement of the frame causes the rotary movement of gear wheel 35, in view of the fact that the latter meshes with gear wheel 36 on the shaft and that said gear wheel 35 is mounted on the rotary frame and therefore moves about the axis of stationary wheel 36. The movement imparted to gear wheel 35 causes the movement of pinions 23 and 24, thereby collapsing the doors of the shaft at the time they are moved outwardly, the two operations being practically simul taneous.

The doors of the cage are similarly arranged and constructed, two of these doors on a given side of the shaft being referred to in the following description,and these doors being designated and 61. The doors 60 and61 on a given side of the cage are operated by means of a tripper 62 cooperating with a channel 63, the open side of the channel facing toward the interior of the shaft.

The endportions of the inner channels are deflected toward each other, and they are engaged by the tripper upon movement of the cage to a position opposite the doorway of the shaft The tripper 62 is carried on a short shaft 64-mounted betweenthe Sta-- tionary vertical bars 65 and 66 carried by the cage, and said shaft 64 acts under the influence of a spring 67 to hold the doors normally in a position to close the doorway of the cage. A similar spring 44 acts in I the same manner with reference to the doors of the shaft, although the spring last named acts directly to rotate the door frames and then to operate the doors.

The shaft 64 carries a pinion 72 which meshes with a pinion 73, and these pinions are rigid with reference to the upper and lower bars of the respective doors, whereby their rotation serves to collapse these doors in the manner indicated in connection with the doors of the shaft. It will be understood that the trippers operate to control the cage, a door therefor, means on the cage adapted to be engaged by means in the shaft for automatically operating the door, a collapsible shaft door mounted for movement on a vertical axis, and cage operated means for imparting a plurality of independent movements to the shaft door for opening the latter.

3. In a device of the class described, a cage, a door therefor, a rotatable and collapsible shaft door, and a plurality of rotatable devices each controlled by the move ment of the cage for operating said doors simultaneously, said rotatable devices each including meshing gear wheels and a rotatable trip imparting movement thereto.

4. In a device of the class described, a cage, a door therefor, a pair of shaft doors, each of said doors being collapsible, and means controlled by the movement of the cage for operating said doors simultaneously and a second pair of collapsible shaft doors, and means for collapsing the second pair upon the collapse of the doors of the pair first named.

5. In a device of the class described, a cage, a door therefor, a shaft door, each of said doors being collapsible and one of said doors mounted for movement outwardly, and means for effecting all of said movements automatically by the movement of the cage. I

6. In a device of the class described, a cage, a door therefor, a shaft door, each of said doors being collapsible and one of said doors mounted for movement outwardly,

and means for effecting all of said movements simultaneously by the movement of the cage.

7. In a device of the class described, a cage, a collapsible door therefor, means for automatically collapsing the door, a collapsible shaft door, and cage operated means for automatically collapsing the door last named and turning the same outwardly upon the collapse of the door first named.

8. In a device of the class described, a cage, a collapsible door therefor, means engaging the door for automatically collapsing the latter, a shaft door, means for mounting the same to produce partial rotation, and means for effecting such partial rotation upon the collapse of the door first named.

9. In a device of the class described, a cage, a collapsible door therefor, a rotary collapsible shaft door, mounting means therefor, means for collapsing said door and means for opening the shaft door automatically by a partial rotary movement upon the collapse of the door first named,

10. In a device of the class described, a cage, a collapsible door therefor, a collapsible shaft door, spring held mounting means therefor, means for collapsing said door and means for opening the shaft door automatically upon the collapse of the door first named.

11. In a device of the class described, a cage, a collapsible door therefor, spring held mounting means for said door, a shaft door, spring held rotary mounting means for the latter, and devices operated by movement of the cage for producing the simultaneous opening of both doors.

12. In a device of the class described, a cage, a collapsible door therefor, means holding said door normally closed, a col lapsible shaft door rotatably mounted, means holding the latter normally closed, means for collapsing the door last named and partly rotating the mounting means therefor.

13. In a device of the class described, a cage, a door therefor, a collapsible shaft door, a frame for mounting the latter, a vertical shaft, means for partly rotating the the channel member, a vertical frame for mounting said door, a vertical shaftabout Which the frame is partly rotatable, and means for rotating the frame by the tripper and throwing the door outwardly.

15. In a device of the class described, a cage, a door therefor, a pair of collapsible shaft doors, mounting means for the doors last named, rotatable on a vertical axis,

meshing pinions carried by certain of the members of said doors, and means for retating the pinions for collapsing the doors and simultaneously causing the rotary movement of the mounting means on a vertical axis.

16. In a device of the class described, a cage, a door therefor, a pair of collapsible shaft doors, mounting means for the doors last named, meshing pinions carried by certain of the members of said doors last named, a vertical shaft about which the mounting means is rotatable, resilient means retaining the mounting means in normal position, a tripper, gearing transmitting motion from the tripper to the mounting means, and gearing transmitting motion to one of the pinions and thence to the other of said pinions.

17. In a device of the class described, a cage, a door therefor, a pair of collapsible shaft doors including a plurality of members pivotally connected and a rotatable frame for mounting the same, meshing pinions carried by certain of the members of the respective doors, a'vertical shaft about Which the frame is rotatable, resilient means retaining the shaft in normal position, a tripper, gearing, mounting means therefor, said gearing transmitting motion from the tripper to the frame, and gearing transmitting motion to one of the pinions. and thence to the other of said pinions.

In testimony whereof I affix my signature.

GIUSEPPE ALFANO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

